<template>
	<view>
	  <view class="goods-list">
	    <view v-for="(goods, i) in goodsList" :key="i" @click="gotoDetail(goods)">
	      <my-goods :goods="goods"></my-goods>
	    </view>
	  </view>
	</view>
</template>

<script >
	export default{
		data() {
			return {
				// 请求参数对象
				queryObj: {
				  query: '',
				  cid: '',
				  pagenum: 1,
				  pagesize: 10
				},
				goodsList: [],
				total: 0,
				// 节流阀
				isloading: false
			}
		},
		onLoad(options) {
			console.log(options);
			this.queryObj.query = options.query || ''
			this.queryObj.cid = options.cid || ''
			console.log(options);
			this.getGoodsList()
		},
		methods:{
			// 获取商品列表数据的方法
			async getGoodsList(cb) {
			  // 打开节流阀
			  this.isloading = true
			  const { data: res } = await uni.$http.get('/api/public/v1/goods/search', this.queryObj)
			  // 关闭节流阀
			  this.isloading = false
			  cb && cb()
			  if (res.meta.status !== 200) return uni.$showMsg()
			
			  this.goodsList = [...this.goodsList, ...res.message.goods]
			  this.total = res.message.total
			  console.log(res);
			},
			gotoDetail(goods) {
			  uni.navigateTo({
			    url: '/subpkg/goods_detail/goods_detail?goods_id=' + goods.goods_id
			  })
			}
		},
		// 上拉触底加载更多数据
		onReachBottom() {
			// 数据加载完后，不在发起请求
			// 每次pagesize为10条 total=32时， pagenum =4 * pagesize =10 >= 32  结束发起请求
			if(this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('数据加载完毕!')
			
			// 正在请求数据，不要再发起请求
			if (this.isloading) return
			 
			this.queryObj.pagenum++
			this.getGoodsList()
		},
		// 下拉刷新
		onPullDownRefresh() {
			// 重置关键数据
			this.queryObj.pagenum = 1
			this.total = 0
			this.isloading = false
			this.goodsList = []
			
			// 重新发起数据请求,完成后自动闭合
			this.getGoodsList(() => uni.stopPullDownRefresh())
		}
	}
</script>

<style lang="scss" scoped>

</style>
